Deep sequence analysis reveals the ovine rumen as a reservoir of antibiotic resistance genes

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Deep sequence analysis reveals the ovine rumen as a reservoir of antibiotic resistance genes. / Hitch, Thomas; Thomas, Ben J.; Friedersdorff, Jessica Charlotte Abigail; Ougham, Helen; Creevey, Christopher.

In: Environmental Pollution, Vol. 235, 01.04.2018, p. 571-575.

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Hitch, Thomas ; Thomas, Ben J. ; Friedersdorff, Jessica Charlotte Abigail ; Ougham, Helen ; Creevey, Christopher. / Deep sequence analysis reveals the ovine rumen as a reservoir of antibiotic resistance genes. In: Environmental Pollution. 2018 ; Vol. 235. pp. 571-575.

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@article{ecf9416551e34cb6bfac74b70533b95e,
title = "Deep sequence analysis reveals the ovine rumen as a reservoir of antibiotic resistance genes",
abstract = "Antibiotic resistance is an increasingly important environmental pollutant with direct consequences for human health. Identification of environmental sources of antibiotic resistance genes (ARGs) makes it possible to follow their evolution and prevent their entry into the clinical setting. ARGs have been found in environmental sources exogenous to the original source and previous studies have shown that these genes are capable of being transferred from livestock to humans. Due to the nature of farming and the slaughter of ruminants for food, humans interact with these animals in close proximity, and for this reason it is important to consider the risks to human health. In this study, we characterised the ARG populations in the ovine rumen, termed the resistome. This was done using the Comprehensive Antibiotic Resistance Database (CARD) to identify the presence of genes conferring resistance to antibiotics within the rumen. Genes were successfully mapped to those that confer resistance to a total of 30 different antibiotics. Daptomycin was identified as the most common antibiotic for which resistance is present, suggesting that ruminants may be a source of daptomycin ARGs. Colistin resistance, conferred by the gene pmrE, was also found to be present within all samples, with an average abundance of 800 counts. Due to the high abundance of some ARGs (against daptomycin) and the presence of rare ARGs (against colistin), we suggest further study and monitoring of the rumen resistome as a possible source of clinically relevant ARGs",
keywords = "resistome, antibiotic resistance gene, metagenome, ovine, rumen",
author = "Thomas Hitch and Thomas, {Ben J.} and Friedersdorff, {Jessica Charlotte Abigail} and Helen Ougham and Christopher Creevey",
year = "2018",
month = apr,
day = "1",
doi = "10.1016/j.envpol.2017.12.067",
language = "English",
volume = "235",
pages = "571--575",
journal = "Environmental Pollution",
issn = "0269-7491",
publisher = "Elsevier",

}

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TY - JOUR

T1 - Deep sequence analysis reveals the ovine rumen as a reservoir of antibiotic resistance genes

AU - Hitch, Thomas

AU - Thomas, Ben J.

AU - Friedersdorff, Jessica Charlotte Abigail

AU - Ougham, Helen

AU - Creevey, Christopher

PY - 2018/4/1

Y1 - 2018/4/1

N2 - Antibiotic resistance is an increasingly important environmental pollutant with direct consequences for human health. Identification of environmental sources of antibiotic resistance genes (ARGs) makes it possible to follow their evolution and prevent their entry into the clinical setting. ARGs have been found in environmental sources exogenous to the original source and previous studies have shown that these genes are capable of being transferred from livestock to humans. Due to the nature of farming and the slaughter of ruminants for food, humans interact with these animals in close proximity, and for this reason it is important to consider the risks to human health. In this study, we characterised the ARG populations in the ovine rumen, termed the resistome. This was done using the Comprehensive Antibiotic Resistance Database (CARD) to identify the presence of genes conferring resistance to antibiotics within the rumen. Genes were successfully mapped to those that confer resistance to a total of 30 different antibiotics. Daptomycin was identified as the most common antibiotic for which resistance is present, suggesting that ruminants may be a source of daptomycin ARGs. Colistin resistance, conferred by the gene pmrE, was also found to be present within all samples, with an average abundance of 800 counts. Due to the high abundance of some ARGs (against daptomycin) and the presence of rare ARGs (against colistin), we suggest further study and monitoring of the rumen resistome as a possible source of clinically relevant ARGs

AB - Antibiotic resistance is an increasingly important environmental pollutant with direct consequences for human health. Identification of environmental sources of antibiotic resistance genes (ARGs) makes it possible to follow their evolution and prevent their entry into the clinical setting. ARGs have been found in environmental sources exogenous to the original source and previous studies have shown that these genes are capable of being transferred from livestock to humans. Due to the nature of farming and the slaughter of ruminants for food, humans interact with these animals in close proximity, and for this reason it is important to consider the risks to human health. In this study, we characterised the ARG populations in the ovine rumen, termed the resistome. This was done using the Comprehensive Antibiotic Resistance Database (CARD) to identify the presence of genes conferring resistance to antibiotics within the rumen. Genes were successfully mapped to those that confer resistance to a total of 30 different antibiotics. Daptomycin was identified as the most common antibiotic for which resistance is present, suggesting that ruminants may be a source of daptomycin ARGs. Colistin resistance, conferred by the gene pmrE, was also found to be present within all samples, with an average abundance of 800 counts. Due to the high abundance of some ARGs (against daptomycin) and the presence of rare ARGs (against colistin), we suggest further study and monitoring of the rumen resistome as a possible source of clinically relevant ARGs

KW - resistome

KW - antibiotic resistance gene

KW - metagenome

KW - ovine

KW - rumen

U2 - 10.1016/j.envpol.2017.12.067

DO - 10.1016/j.envpol.2017.12.067

M3 - Article

C2 - 29331890

VL - 235

SP - 571

EP - 575

JO - Environmental Pollution

JF - Environmental Pollution

SN - 0269-7491

ER -

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